AMD Radeon PRO V620 vs NVIDIA TITAN X Pascal Comparison

FAQ

Q: Which GPU has the higher average benchmark score?

A: The AMD Radeon PRO V620 records an average benchmark score of 136,472, placing it in the 96th percentile of all GPUs. The NVIDIA TITAN X Pascal averages 72,098, which lands in the 91st percentile. The V620 is roughly 89.3% higher in average score.

Q: How do the two GPUs compare in OpenCL performance?

A: In Geekbench OpenCL, the AMD Radeon PRO V620 scores 128,580, while the NVIDIA TITAN X Pascal scores 66,696. The AMD card leads by 92.8%, a decisive margin in compute workloads.

Q: What about Vulkan performance?

A: The V620 posts 144,364 in Geekbench Vulkan, versus 77,499 for the TITAN X Pascal. The AMD card wins by 86.3% in this API test.

Q: Which GPU has more memory, and what type?

A: The AMD Radeon PRO V620 packs 32 GB of GDDR6 on a 256-bit bus, delivering 512.0 GB/s of bandwidth. The NVIDIA TITAN X Pascal has 12 GB of GDDR5X on a 384-bit bus, yielding 480.4 GB/s. Despite the narrower bus, the V620's higher memory clock (16 Gbps effective versus 10 Gbps) gives it a bandwidth advantage.

Q: Are these GPUs still in production?

A: Both are end-of-life products. The AMD Radeon PRO V620 was released on November 3, 2021, while the NVIDIA TITAN X Pascal was released on August 1, 2016. The TITAN X Pascal had a launch MSRP of 1,199 USD.

Q: Which GPU has a higher transistor density?

A: The V620, built on a 7 nm process, has 26,800 million transistors across a 520 mm² die, giving a density of 51.5M per mm². The TITAN X Pascal, on a 16 nm process, has 11,800 million transistors on a 471 mm² die, for a density of 25.1M per mm².

The Verdict

The data leaves little ambiguity. The AMD Radeon PRO V620 is the outright performance winner in every recorded benchmark, taking both head-to-head tests and scoring nearly double the average of the NVIDIA TITAN X Pascal. For anyone prioritizing raw compute throughput, particularly in OpenCL or Vulkan workloads, the V620 is the clear choice.

The NVIDIA TITAN X Pascal, however, is not without its arguments. It is an older architecture from 2016, and its 91st percentile ranking still places it above the vast majority of GPUs in the database. It also has a lower power draw (250 W versus 300 W) and a simpler single 6-pin plus 8-pin connector arrangement, which could make it easier to slot into an existing system. The TITAN X Pascal has display outputs, while the V620 has none, so for any workstation that needs a physical monitor connection without a secondary GPU, the NVIDIA card is the only option here.

The verdict is straightforward: if the workload is pure compute and the system already handles display output separately, the AMD Radeon PRO V620 dominates. If the card must also drive a monitor, or if power and physical footprint matter more than raw scores, the TITAN X Pascal remains viable despite its large performance deficit. The benchmark database records two wins for the V620 and zero for the TITAN X Pascal, so the performance hierarchy is unambiguous.

Head-to-Head Benchmarks

The Geekbench OpenCL test shows the AMD Radeon PRO V620 scoring 128,580 against 66,696 for the NVIDIA TITAN X Pascal. That is a delta of 92.8%, meaning the V620 delivers nearly twice the score. The V620's FP32 throughput of 20.28 TFLOPS versus 10.97 TFLOPS for the TITAN X Pascal helps explain this gap, as does the V620's 4608 shading units versus 3584 for the NVIDIA card.

In Geekbench Vulkan, the V620 scores 144,364, while the TITAN X Pascal manages 77,499. The delta here is 86.3%. The V620's support for DirectX 12 Ultimate (12_2) and its 72 ray tracing cores give it a modern API feature set, whereas the TITAN X Pascal is limited to DirectX 12 (12_1) with no ray tracing hardware. The V620 also has a massive FP16 advantage: 40.55 TFLOPS (2:1) versus 171.5 GFLOPS (1:64) for the Pascal card, a difference of over 200x in half-precision compute.

The pixel rate and texture rate numbers reinforce the same story. The V620 posts 281.6 GPixel/s and 633.6 GTexel/s, while the TITAN X Pascal delivers 147.0 GPixel/s and 342.9 GTexel/s. The V620 leads in both by roughly 92% and 85%, respectively. Memory bandwidth is closer, with the V620 at 512.0 GB/s versus 480.4 GB/s for the TITAN X Pascal, but even here the newer card edges ahead.

The closest rival comparison for the V620 shows it sitting just 0.5% above the AMD Radeon Pro W6800X Duo and 0.8% above the AMD Radeon PRO W6800. For the TITAN X Pascal, its nearest rival is the AMD Radeon Pro Vega 64, which is 0.4% faster. This illustrates the generational chasm: the V620 competes with modern workstation cards, while the TITAN X Pascal sits alongside 2017-era Vega parts.

Specification Differences

The two cards differ on nearly every core specification. The AMD Radeon PRO V620 uses a Navi 21 chip on a 7 nm process, while the NVIDIA TITAN X Pascal uses a GP102 chip on a 16 nm process. Both are fabricated by TSMC.

Transistor counts diverge sharply: the V620 has 26,800 million transistors, the TITAN X Pascal has 11,800 million. Die sizes are closer, 520 mm² versus 471 mm², but the density difference is stark at 51.5M per mm² versus 25.1M per mm².

Clock speeds favor AMD. The V620 has a base clock of 1825 MHz and a boost of 2200 MHz. The TITAN X Pascal runs at 1417 MHz base and 1531 MHz boost. Memory clocks also differ: the V620 uses 2000 MHz with 16 Gbps effective, while the TITAN X Pascal uses 1251 MHz with 10 Gbps effective.

Memory capacity and type are major separators: 32 GB of GDDR6 on a 256-bit bus for the V620, versus 12 GB of GDDR5X on a 384-bit bus for the TITAN X Pascal. Bandwidth is 512.0 GB/s versus 480.4 GB/s.

The compute units differ as well. The V620 has 4608 shading units, 288 TMUs, and 128 ROPs. The TITAN X Pascal has 3584 shading units, 224 TMUs, and 96 ROPs. The V620 also includes 72 ray tracing cores; the TITAN X Pascal has none.

Power requirements favor NVIDIA. The TITAN X Pascal has a TDP of 250 W with a suggested PSU of 600 W and uses one 6-pin plus one 8-pin connector. The V620 has a TDP of 300 W, a suggested PSU of 700 W, and needs two 8-pin connectors.

Physical dimensions are similar in length: both are 267 mm. The V620 is taller at 120 mm versus 112 mm, and wider at 50 mm versus 40 mm. Both are dual-slot cards.

The bus interface differs: PCIe 4.0 x16 for the V620, PCIe 3.0 x16 for the TITAN X Pascal. Display outputs differ completely: the V620 has none, while the TITAN X Pascal has 1x DVI, 1x HDMI 2.0, and 3x DisplayPort 1.4a.

Architecture Differences

The AMD Radeon PRO V620 is built on RDNA 2.0, a modern architecture designed for compute-heavy workloads with support for ray tracing and variable rate shading. Its DirectX 12 Ultimate (12_2) support and Vulkan 1.4 API compliance indicate a GPU built for current and future graphics APIs. The 72 ray tracing cores are a significant architectural addition that the TITAN X Pascal simply lacks.

The NVIDIA TITAN X Pascal uses the Pascal architecture, which debuted in 2016. It supports DirectX 12 (12_1) and Vulkan 1.4, but without ray tracing or mesh shaders. Its FP16 throughput of 171.5 GFLOPS at a 1:64 ratio shows that half-precision compute was not a priority for Pascal; it is effectively a single-precision card.

The memory subsystems reflect different design goals. The V620 uses 32 GB of GDDR6, which is double the capacity of most workstation cards from its era and suited for large datasets or AI inference models. The TITAN X Pascal's 12 GB of GDDR5X is a consumer-grade allotment, adequate for gaming and light compute but limiting for modern workloads. The V620's 256-bit bus with 16 Gbps memory achieves 512.0 GB/s, slightly beating the TITAN X Pascal's 384-bit bus with 10 Gbps memory at 480.4 GB/s.

Process technology is another major architectural divider. The 7 nm node for the V620 enables a transistor density of 51.5M per mm², roughly double the TITAN X Pascal's 25.1M per mm². This density advantage allows the V620 to pack more compute units and ray tracing hardware into a similar die size, while also supporting a higher boost clock of 2200 MHz versus 1531 MHz.

The V620's lack of display outputs is an architectural choice: it is a compute accelerator meant to sit alongside a separate display adapter in a server or workstation. The TITAN X Pascal, by contrast, is a full graphics card with DVI, HDMI, and DisplayPort outputs, designed to drive monitors directly.

Where Each One Wins

The AMD Radeon PRO V620 wins in every compute benchmark recorded. Its 92.8% OpenCL lead and 86.3% Vulkan lead make it the dominant choice for GPU compute tasks such as rendering, simulation, and machine learning inference. The 32 GB memory capacity is a decisive advantage for workloads that need to hold large datasets on the GPU without spilling to system RAM. The V620's FP16 throughput of 40.55 TFLOPS, versus 171.5 GFLOPS for the TITAN X Pascal, makes it vastly better suited for mixed-precision AI workloads.

The NVIDIA TITAN X Pascal wins in scenarios where the GPU must function as a display adapter. It has 1x DVI, 1x HDMI 2.0, and 3x DisplayPort 1.4a outputs, while the V620 has none. For a desktop workstation that requires a single card to both compute and drive a monitor, the TITAN X Pascal is the only viable option in this comparison.

The TITAN X Pascal also wins on power efficiency in absolute terms. Its 250 W TDP is lower than the V620's 300 W, and its suggested PSU of 600 W is less demanding than the V620's 700 W recommendation. The single 6-pin plus 8-pin connector setup is also easier to accommodate in legacy power supplies.

The V620 wins on modern API support. DirectX 12 Ultimate and Vulkan 1.4, combined with ray tracing cores, make it forward-compatible for next-generation game engines and rendering pipelines. The TITAN X Pascal's DirectX 12 (12_1) support lacks the feature level required for ray tracing, putting it at a disadvantage for any future workload that leverages those features.

The V620 wins decisively in raw performance, memory capacity, and architectural modernity. The TITAN X Pascal wins only in display connectivity, lower power draw, and ease of integration into older systems. For pure compute, the V620 is the clear pick; for a legacy desktop GPU that still needs to output video, the TITAN X Pascal retains a narrow niche.